Abstract
SrRuO$_3$ is a metallic ferromagnet. Its electrical resistivity is reported for temperatures up to 1000K; its Hall coefficient for temperatures up to 300K; its specific heat for temperatures up to 230K. The energy bands have been calculated by self-consistent spin-density functional theory, which finds a ferromagnetic ordered moment of 1.45$\mu_{{\rm B}}$ per Ru atom. The measured linear specific heat coefficient $\gamma$ is 30mJ/mole, which exceeds the theoretical value by a factor of 3.7. A transport mean free path at room temperature of $\approx 10 \AA$ is found. The resistivity increases nearly linearly with temperature to 1000K in spite of such a short mean free path that resistivity saturation would be expected. The Hall coefficient is small and positive above the Curie temperature, and exhibits both a low-field and a high-field anomalous behavior below the Curie temperature.
Keywords
Electrical resistivity and conductivityCurie temperatureCondensed matter physicsMean free pathHall effectFerromagnetismSaturation (graph theory)Materials scienceThermodynamicsPhysicsChemistryMathematicsQuantum mechanicsElectron
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Publication Info
- Year
- 1996
- Type
- article
- Volume
- 53
- Issue
- 8
- Pages
- 4393-4398
- Citations
- 447
- Access
- Closed
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Cite This
Philip B. Allen,
H. Berger,
O. Chauvet
et al.
(1996).
Transport properties, thermodynamic properties, and electronic structure of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">SrRuO</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>.
Physical review. B, Condensed matter
, 53
(8)
, 4393-4398.
https://doi.org/10.1103/physrevb.53.4393
Identifiers
- DOI
- 10.1103/physrevb.53.4393